drivers/memory/jz4780-nemc.c

File Facts

System

Linux kernel

Corpus path

drivers/memory/jz4780-nemc.c

Extension

.c

Size

10741 bytes

Lines

422

Domain

Driver Families

Bucket

drivers/memory

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/clk.h
• linux/init.h
• linux/io.h
• linux/math64.h
• linux/of.h
• linux/of_address.h
• linux/of_platform.h
• linux/platform_device.h
• linux/slab.h
• linux/spinlock.h
• linux/jz4780-nemc.h

Detected Declarations

• struct jz_soc_info
• struct jz4780_nemc
• function jz4780_nemc_num_banks
• function jz4780_nemc_set_type
• function jz4780_nemc_assert
• function jz4780_nemc_clk_period
• function jz4780_nemc_ns_to_cycles
• function jz4780_nemc_configure_bank
• function jz4780_nemc_probe
• function for_each_set_bit
• function jz4780_nemc_remove
• function jz4780_nemc_init
• module init jz4780_nemc_init
• export jz4780_nemc_num_banks
• export jz4780_nemc_set_type
• export jz4780_nemc_assert

Annotated Snippet

subsys_initcall(jz4780_nemc_init);

Annotation

• Immediate include surface: `linux/clk.h`, `linux/init.h`, `linux/io.h`, `linux/math64.h`, `linux/of.h`, `linux/of_address.h`, `linux/of_platform.h`, `linux/platform_device.h`.
• Detected declarations: `struct jz_soc_info`, `struct jz4780_nemc`, `function jz4780_nemc_num_banks`, `function jz4780_nemc_set_type`, `function jz4780_nemc_assert`, `function jz4780_nemc_clk_period`, `function jz4780_nemc_ns_to_cycles`, `function jz4780_nemc_configure_bank`, `function jz4780_nemc_probe`, `function for_each_set_bit`.
• Atlas domain: Driver Families / drivers/memory.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.